Filling parting means for looms



Aug. 21, 1934.

J. NORTHROP FILLING PARTING MEANS FOR LOOMS Filed Feb. 5, 1934 3Sheets-Sheet l INVENTOR.

C4 M/To/YJ. CoauE/v. l/O/VAS Noe THEOF.

ATTORNEY.

J. NORTHROP FILLING PARTING MEANS FOR LOOMS Aug. 21, 1934.

Filed Feb. 5, 1934 3 Sheets-Sheet 2 INVENTOR.

ATTORNEY.

Aug. 21, 1934. J. NORTHROP FILLING PARTING MEANS FOR LOOMS 3 heets-Sheet3 Filed Feb. 5, 1934 INVEN TOR. JO/I/A S NOET/vEOR BY M ?M I MN iMTA/ESS. CZ/NTO/V COBUE/V.

ATTORNEY.

Patented Aug. 21, 1934 OFFICE- FILLING PARTING MEANS FOR LOOMS JonasNorthrop, Hopedale, Mass; assignor .to

Draper Corporation, Hopedale, Mass, a corporation of Maine ApplicationFebruary 5, 1934, Serial No. 709,716.

14 Claims. (01. 139-266) The present invention pertains to fillingreplenishing looms and moreparticularly relates to the temple threadparting means for sever.- ing or parting the filling threads leftproject I ing-from the cloth selvage each time the filling supply isreplenished.

The conventional filling replenishing looms which embody means at oneside of the loom for supplying a new shuttle or bobbin when the fillingin the running shuttle is exhausted leave one filling end projectingfrom the cloth selvage or two such ends, depending upon whetherreplenishment takes place after or before complete exhaustion of therunning filling. In any event, the filling end from the newly insertedfilling supply should not be disturbed until the first pick thereof isbeaten into place in the cloth else the tension on such pick be changedand a defect in the cloth produced. On the other 80 hand, the parting ofthis filled end should not be delayed until the end breaks or sags outof reach of the parting device.

Both of the filling ends mentioned above may be parted in one operation,and it follows from the foregoing that such parting operation shouldoccur during the second pick after replenishment of the filling supply.

The invention contemplates the provision of a loom temple embodying anormally inoperative .30 filling parting member of the type operated byor through the beat-up of the lay, and means for rendering the fillingparting member operative for one pick only, subsequent to the firstbeat-up after each replenishing operation.

A further aspect of my invention contemplates the provision of a. pushermember which is normally disengaged from the filling parting member butwhich engages the same and pushes it rearwardly into the path of the layafter the filling ends are in position to be parted. I In the specificembodiment of my invention subsequently described the filling partingmember normally rests idly in a forward position out of the path of thelay. As the replenishing mechanism is called into operation, a pushermember is moved forwardly into engagement with the filling partingmember, a spring is tensioned and a latch is set to prevent actuation ofthe parts by the spring. Return of the replenishing parts to normalposition after operation thereof results in the pusher member pushingthe filling parting member rearwardlyfa short distance.- The lay on itsnext beat-up engages the filling parting member and thereby trips thelatch, which results in the spring forcing the I ing in section;

pusher member rearwardly, thus positioning the parting member foroperation by the lay on the next beat-up. ,As the pusher member movesrearwardly it is automatically disengaged and. repositioned ready forthe next operation of the 9 replenishing mechanism.

While the particular embodiment mentioned consists of relatively fewparts which are simple, cheap and durable, my invention contemplateschanges being made in such embodiment Within the scope of the appendedclaims.

For more detailed disclosure of the said preferred embodiment referencemay be had to the accompanying drawings, of which: 7

Fig; 1 is a plan view of the temple and associated parts Fig. 2 is aside elevation, certain parts of the loom frame and replenishingmechanism appear- Fig. 3 is a detail, Figs. 1, 2 and3 showing the partsin, their normal inoperative positions;

Figs. 4 and 5 show, in full and dotted lines, two subsequent stages inthe operation of the device;

Figs. 6 and 7 further illustrate the operation; and i Fig. 8 is a viewin perspective of the temple with the parts of the filling partingmechanism in spaced relation thereto.

The loom to which my inventionhas been applied is of conventional designexcept for the filling parting mechanism, and is not herein disclosed indetail. Of such conventional parts there does appear on the drawings thebreast beam- 1 which extends across the loom at the front thereof. Thereis also fragmentarily illustrated the lay 2 which is adapted to bereciprocated toward and from the front of the loom, i. e. toward andfrom .the breast beam 1, in the usual manner. The warp threads W feedfrom the rear of the loom toward the, front and the filling f isinserted and beaten up to the fell F to form cloth C, by other usualinstrumentalities not shown.

Of the filling replenishing mechanism I have shown only a rod 3 whichextends across the front of the loom beneath the breast beam. This rodwill be recognized by .those familiar with automatic looms as being theusual means for transmitting a call for'replenishment'from one side ofthe loom to the other.

A temple housing t is mounted on the breast beam 1 and a temple bar 5carrying a head. 6 is mounted for reciprocation in the housing 4 in theusual manner. A filling parting means is'mounted in the temple head forparting projecting filling ends adjacent the cloth selvage. Whilevarious forms of parting means may be employed, I prefer a member 7which is mounted in the temple head for rocking and sliding movementsand which is provided at its rearward end with a plurality of upturnedhooks 8 for breaking the filling. A depending arm 9 on the member 7 isadaptedto be struck by the lay as the latter beats up, forward movementof the member 7 serving to part any filling ends which may be positionedin front of the hooks 8.

The filling parting member 7 normally occupies the position in which itis shown on Figs. 1, 2 and 3 and in full lines on Figs. 4 and 5. In thisposition the filling parting member is forwardly of the path of the layand the hooks 8 are housed within the temple head, the member beingidle, or inoperative. Preferably the filling parting member is notbiased either forwardly or rearwardly but is free to rest in any givenposition until moved by the lay or other agencies to be described.

The filling parting member is pushed rearwardly, to operative position,by a pusher member 10. The pusher member in its normal position, Figs. 1and 2, is not in engagement with the filling parting member 7 but issupported at its rearward end 11 upon the temple head and intermediateits ends upon a pin 12, to be described. It will be noted that thepusher member is provided with an opening 13 which permits the same tomove relative to the pin 12. The forward end of the pusher member isprovided with a slot 14 in which is engaged a pin 15 carried by an arm16 on the rod 3. By this means, the replenishing mechanism is made tomove the pusher member forwardly and rearwardly in a manner to bedescribed later. A guide member 17 may be provided on the temple housingfor guiding the pusher member in its movements. 4

A latch 18 is provided at its rearward end with a slot 19 engaging overa pin 20 which projects from the temple bar 5. The slot 19 is curved ornotched upwardly at its forward and rearward ends 21 and 22, to providetwo positions of engagement. The pin 12 above mentioned is carried bythe latch intermediate the ends of the latter. The forward end of thelatch is slotted at 23 to receive the pin 15, the slot 23 being longerthan the slot 14.

A bell crank lever 24 is pivoted on pin 20. One arm of the lever is bentlaterally at 25 (Fig. 1) to bear on the top edge of the latch 18. Theother arm 26 is connected to one end of a spring 27. The other end ofthe spring is hooked into an upstanding boss 28 formed on the latch 18.This spring, when tensioned, serves two functions. First, it tends topull the latch, and thereby the pusher member, rearwardly. Second,through the medium of lever 24 it serves to bias the'rearwardend of thelatch downwardly with a consequent engagement of the notch 21 or 22 withpin 20 according to the position of the latch.

The operation is as follows:

The various parts of the filling parting mechanism are normallypositioned as shown in Figs. 1, 2 and 3, wherein the pin'le' is at theforward end of slots 14 and 23, the notch 21 is engaged with pin 20toh'old the latch 18 stationary, and 70' the rearward end 11 of pushermember 10 rests upon the temple head. During the'idle, orinoperativeperiod, the filling parting member 7 rests in the positionshown, being held solely by such friction as exists in the guidewayin'the i temple head. When replenishment of the filling supply isrequired rod 3 is rotated. counterclockwise from the position of Fig. 2to the full-line position of Fig. 4.

Movement of the rod 3 to replenishing position occurs early in the cycleof the lay, and the actual transfer of the new filling supply does notoccur until the lay reaches front center on the beatup. It will benoted, Figs. 4 and 5, that such movement of the rod 3, serves to pullthe pusher member 10 forwardly until the notch 29 therein drops intoengagement with a pin 30 projecting from the forward end of the partingmember 7. Also, the latch 18 is pulled forwardly, notch 21 beingdisengaged from and notch 22 engaged with pin 20. Thus, the spring 27 istensicned and the latch set to prevent the spring from moving the latchand pusher member rearwardly.

When the lay beats up and the new filling sup ply inserted the partsdescribed remain stationary and continue so until the lay is wellrearward on the next pick. Then the rod 3 and'arm 16 return to theirinitial position,shown in full lines, Fig. 2 and in dotted lines, Fig.4., This return of arm 16, and pin 15, serves to move the pusher member10 and filling parting member '7 rearwardly (see dotted lines, Figs. 4and 5) just ,sufiiciently that the lay can strike arm 9 at the forwardend of the next beat-up, which is the first beat up after thereplenishing operation.

When the lay strikes the arm 9 as just described, the member 7 rocksabout itsrearward end, thus raising the pin 30. The pin 30 engages in aslot 31 in the latch, wherefore the raising of the pin will raise thelatch until notch 22 is dis engaged from the pin 20. Then, as the layrecedes, Figs. 6 and '7, the spring 27 will pull the latch rearwardly.Rearward movement of the latch moves the pusher member, and thereby thefilling parting member, rearwardly to operative position of the latter.Simultaneously with rearward movement of the pusher member the inclinedrearward end 11 thereof engages the temple head and is cammed upwardlyuntil the notch 29 is disengaged from the pin 30. At this time thelatch, pusher member and replenishing mechanism will all have beenreturned to the normal inoperative position of Figs. 1, 2 and 3. Thefilling parting member will remain in rearward position, with thefilling ends 7 hooked in front of hooks 8, until the next beat-up of thelay, which is the second beat-up after the replenishing operation.

Since the filling parting member in its rearward position just describedis free to move forwardly it will be so moved by the lay, whereupon thefilling ends will be parted adjacent the selvage and the filling partingmember returned to inoperative position.

It will be apparent that. by providing for engaging and disengaging thepusher member in the manner indicated I have eliminated any necessityfor extreme and costly accuracy in the manufacture of the partsinvolved. That is,-the relative locations of slots, pins and notches inthe parts can vary appreciably without detrimental results, andaccordingly the few parts required can be very cheaply manufactured.

. 14 v The types of filling parting devices which are 0 beat-up of thelay after each replenishing operation.

Havingfully described the preferred embodiment of my invention, I claim:

1. A filling replenishing loom having a reciprocating lay, fillingreplenishing mechanism, a temple provided with anormally inoperativefilling parting member, a rigid pusher member normally disengaged fromsaid fillingparting member but engageable therewith for pushing the samerearwardly to operative position, and means controlled by saidreplenishing mechanism for operating said pusher member.

' 2. A filling replenishing loom having a reciprocating lay, fillingreplenishing mechanism, a temple provided with anormally inoperativefilling parting member, a rigid pusher member normally disengaged fromsaid filling parting member but engageable therewith for pushing thesame rearwardly to operative position, means controlled by saidreplenishing mechanism for operating said pusher member after eachreplenishing operation, and means for disengaging said pusher memberfrom said filling parting member as the latter moves rearwardly.

3. A filling replenishing loom having a reciprocating lay, fillingreplenishing mechanism, a temple provided with a filling parting memberoperable by the lay but normally occupying a position forward of thepath of the lay, a pusher member normally disengaged from said fillingparting member but engageable therewith for pushing the same rearwardlyinto the path of the lay, means controlled by said replenishingmechanism for operating said pusher member, and means for disengagingsaid pusher member from said filling parting member as the latter ismoved rearwardly.

4:. A filling replenishing loom having a reciprocating lay, fillingreplenishing mechanism, a temple provided with a normally inoperativefilling parting member, a pusher member normally disengaged from saidfilling parting member, means operating each time said replenishingmechanism operates for moving said pusher member forwardly intoengagement with said filling parting member and then rearwardly to pushthe latter to rearward operative position, and means for disengagingsaid pushermember from said filling parting member as the latter movesrearwardly.

5. A filling replenishing loom having a reciprocating lay, fillingreplenishing mechanism, a temple provided with a filling parting memberoperable by the lay to part the filling ends as the lay beats up, saidmember normally occupying a position forward of the path of the lay, apusher member for pushing said filling parting member rearwardly intothe path of the lay, and means for causing said pusher member to so pushsaid filling parting member only subsequent to the first beat-up of thelay following each replenishing operation.

6. A filling replenishing loom having a reciprocating lay, fillingreplenishing mechanism, a

temple provided with a normally filling parting member, a pusher membernormally disengaged from said filling parting member, means associatedwith said replenishing mechanism for engaging said pusher member withsaid filling parting member, means for moving said pusher member, andthereby the filling parting member, to.- ward operative position of thelatter subsequent to the first beat-up of the lay following eachreplenishing operation, and means for disengaging said pusher memberfrom said'flll-ing parting operative by said first named means to biassaid.

members toward operative position of the filling parting member, meansfor holding said pusher member against the action of saidspring meansduring the first pick aftereach replenishing operation, and means forreleasing said last named means by or through the first beat-upof thelay after each said replenishing operation.

8. A filling replenishing loom having a reciprocating lay, fillingreplenishing mechanism, a temple provided with a filling parting memberoperable by the lay but normally occupying a position forward of thepath of the lay, a pusher member for pushing said filling parting memberrearwardly into the path of the lay, spring means rendered operative bysaid replenishing mechanism to bias said pusher member rearwardly, alatch for restricting rearward movement of said pusher member during thefirst pick after each replenishing operation, and means for releasingsaid latch by or through the first beat-up of the lay after each saidreplenishing operation.

9. A filling replenishing loom having a reciprocating lay, fillingreplenishing mechanism, a temple provided with a filling parting memberoperable by the lay but normally occupying a position forward of thepath of the lay, means controlled by said replenishing mechanism formoving said filling parting member rearwardly to operative positionthereof, a latch for preventing said movement of the filling partingmember during the first pick after each replenishing operation, andmeans for releasing said latch by or through the first beat-up of thelay after each said replenishing operation.

10. A filling replenishing loom having a reciprocating lay, fillingreplenishing mechanism, a temple provided with a filling parting memberoperable by the lay but normally occupying. a position out of the pathof the lay, means rendered operative by said replenishing mechanism tobias said filling parting member tooperative position, a latch forpreventing the filling parting member from being returned to operationduring the first pickafter each replenishing operation and means forreleasing said latch by or through the first beat-up of the lay aftereach said replenishing operation.

11. A filling replenishing loom having a reciprocating lay, fillingreplenishing mechanism, a temple provided with a normally inoperativefilling parting member, a pusher member movable to restore said fillingparting member to operation after each replenishing operation, a latchfor preventing such movement of the pusher member during the first pickafter each said replenishing operation, a single spring connected toactuate both said latch and said pusher member, and means for releasingsaid latch.

12. A filling replenishing loom having a reciprocating lay, fillingreplenishing mechanism, a temple provided with a normally inoperativefilling parting member, a pusher member movable to restore said fillingparting member'to operation after each replenishing operation, a latchfor preventing such movement of the pusher member during the first pickafter each said replenishing operation, a single spring connected toactuate both said latch and said pusher member, and means for releasingsaid latch by or through the first beat-up of the lay after each saidreplenishing operation.

13. A filling replenishing loom having a reciprocating lay, fillingreplenishing mechanism, a temple provided with a normally inoperativefill-- ing parting member, a latch mounted adjacent said temple, apusher member supported by said latch and adapted to push said fillingparting member to operative position, means associated with saidreplenishing mechanism for rendering said latch operative to restrictmovement of said pusher member during the first pick after eachreplenishing operation, and means for releasing Said latch by or throughthe beat-up of the lay. 14. A filling replenishing loom having areciprocating lay, filling replenishing mechanism, a temple providedwith a normally inoperative filling parting member, a latch mountedadjacent said temple, a pusher member slidably supported by said latchand adapted to push said filling parting member to operative position,means for rendering said latch operative to restrict movement of saidpusher member during the first pick after each replenishing operation,and a connection between said thread parting member and said latch forreleasing the latter when the former is engaged by the lay during thefirst beat-up after each replenishing operation.

JONAS N ORTHROP.

